In 1925, the Liberal prime minister, William Lyon Mackenzie King, arranged for Egbert's appointment as lieutenant governor.

Egbert served six years in that post, and participated in a variety of activities, from welcoming the Prince of Wales to hosting students at the University of Alberta.

"[4] In the early 1890s, Egbert played a key role in establishing a rural telephone service in his area.

[4] After being impressed with the Canadian West on a trip there, Egbert and his family moved to Calgary, where he established a medical practice in 1904.

[6] During his tenure as lieutenant governor, Egbert and his family resided at Government House, and visited many areas of the province, remarking that Alberta "was one of the greatest places to live.

"[7] As Lieutenant Governor, Egbert attended many functions, such as the Annual Convention of the Union of Alberta Municipalities and the welcoming ceremony of the new Anglican Bishop of the Diocese of Calgary.

He also gave speeches at events, such as the 100th anniversary of Father Albert Lacombe's birth and a speech at the Alberta Legislature Building as a member of National Committee for the Celebration of the Diamond Jubilee of Confederation that commemorated the importance and the achievements of the Fathers of Confederation.

[6] The same year saw the completion of the all-Canadian telephone service, which had connections between Edmonton, Calgary, Vancouver and Victoria.

[6] Among events held to celebrate this completion, Egbert participated in a telephone conversation with Lieutenant Governor of British Columbia Robert Randolph Bruce from Edmonton to Victoria.

[9] In 1935, he became the chairman of the Economic Safety League, an establishment of representatives from various members of boards of trade and chambers of commerce throughout the province.

[9] His funeral service on October 17, held at the Park Memorial Chapel in Calgary, was attended by more than 400 people.

[9] As a physician, he was described as "humane, never withholding his services from the poorest and humblest, and his unremitting and unrewarded efforts in behalf of the suffering [would] give him rank in a profession eminently benevolent.